[Elecraft] Transverter XV144 way off frequency

[Don Wilhelm]

Bob,

I skipped Dayton this year.
It is true that there is no stock means of syncing the XV144 to an 
external standard.
A few owners have said they were successful with replacing the crystal 
with a circuit that is synced to an external standard, but I now nothing 
of that implementation.  Perhaps someone who has done it will speak up.

How is JP9 jumpered in your XV144.  For maximum stability, the jumper 
should be between pins 4 and 5 (no other jumpers).  With that setting, 
the crystal oven will be powered as long as 12 volts is applied to your 
XV144 - don't turn the power supply off!  Let the oven warm things up 
for at least a half hour (longer if possible) and then calibrate.  It 
should stay close on frequency.

73,
Don W3FPR

On 5/17/2019 3:06 PM, Bob KD7YZ wrote:
> My K3 has an external "Leo Bodnar" reference [REF * CAL]   . Thus the K3
> is accurate for my EME and MSK144/FT8 adventures on 2m.
> 
> Except: I discovered that the XV144 is not synced with anything.
> The K3 Menu/Config DOES allow for "XV1 OFS", and knob turning, to set in
> a "Calibration" value.
> 
> As I do not have the luxury of a bench of accurate test and calibration
> equipment, I am unable to get the XV1 to get and remain near to accracy.
> 
> Some friends told me they "Thought" that the XV144, external
> Transverter, does have the option for an external GPS REFLOCK as the K3 has.
> 
> Calls to Elecraft revealed, other than friendly people, that there is no
> way they know to REFLOCK the XV144 ..
> 
> So List people, figuring I do not want to calibrate every day, how are
> you users of XV144 keeping your other friends from naggin you every day
> and every time you call CQ on MSK144 ??
> 
> 
> Hoping Don, W3FPR,  will have some time after hectic daily Dayton
> HamFest schedule to answer too.
> 
> 
> --
> 73
> Bob KD7YZ
> AMSAT LM #901
> 
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